GATE EE 1992
GATE EE
In the following circuit the $$5$$ $$V$$ zener diode requires a minimum current of $$10$$ $$mA.$$ For obtaining a regula
View Question In the circuit shown in figure calculate and sketch the wave form of current $$'i'$$ over one period of the i/p voltages
View Question An ideal op-amp is used to make an inverting amplifier. The two input terminals of the op-amp are at the same potential
View Question The Circuit shown in figure is excited by the input wave form shown. Sketch the wave form of the output. Assume all the
View Question In the following circuit the output $$'V'$$ follows an equation of the form
$${{{d^2}V} \over {d{t^2}}} + a.{{dV} \over
View Question $$(a)$$ For the circuit shown in figure
$$(i)$$ Calculate the transfer function $${{{V_0}} \over {{V_i}}}$$
$$(ii)$$
View Question In a common Emitter amplifier, the un bypassed emitter resistance provides
View Question The voltage series feedback in a feedback amplifier leads to
View Question In an $$RC$$- coupled common Emitter amplifier which of the following is true?
View Question For the $$JFET$$ amplifier shown in figure $$\mu = 100,\,{r_d} = 50k\Omega $$
$$(i)$$ Draw the $$AC$$ equivalent circu
View Question The overall transfer function of the system in Figure, is
View Question For what values of $$'a'$$ does the system shown in figure have a zero steady state error $$\left[ {i.e.,\mathop {Lim}\l
View Question For what range of $$K$$ is the following system (Figure) asymptotically stable Assume $$K \ge 0$$
View Question Which of the following figure(s) represent valid root loci in the $$s$$ - plane for positive $$K?$$ Assume that the syst
View Question A unity feedback system has the open loop transfer function $$G\left( s \right) = {1 \over {\left( {s - 1} \right)\left(
View Question If the $$HLT$$ instruction of a $$8085$$ microprocessor is executed,
View Question All the resistances in the circuit of Fig. are of 1 $$\Omega$$ each. The value of current 'I' is
View Question Resistances in the circuit of fig. are of R $$\Omega$$ each. The switch is initially open. What happens to the lamp's in
View Question The equivalent inductance seen at terminals $$A-B$$ in Fig. is .................... $$H.$$
View Question In the circuit of Fig, the switch $$'S'$$ is closed at $$t=0$$ with $${i_L}\left( 0 \right) = 0$$ and $${V_C}\left( 0 \
View Question The time constant of the network shown in Fig. is
View Question Using Thevenin equivalent circuit, determine the $$rms$$ value of the voltage across the $$100$$ $$ohm$$ resistor after
View Question A resistance is measured by the voltmeter- ammeter method employing d.c. excitation and a voltmeter of very high resista
View Question An unshielded moving iron voltmeter is used to measure the voltage in an a.c. circuit. If a stray d.c. magnetic field ha
View Question In $$d.c.$$ potentiometer measurements, a second reading is often taken after reversing the polarities of the $$s.c.$$ s
View Question In a dual slope integrating type digital voltmeter the first integration is carried out for $$10$$ periods of the supply
View Question The torque angle of a synchronous machine operating from a constant voltage bus, is usually defined as the space angle b
View Question The developed electromagnetic force and or torque in electro $$-$mechanical energy conversion systems act in a directi
View Question Figure depicts the load characteristics of an constant speed. Match the following sets of operating conditions with the
View Question Neglecting all losses, the developed torque $$(T)$$ of $$d.c.$$ separately excited motor, operating under constant termi
View Question A separately excited $$d.c.$$ motor has an armature resistance of $$0.5$$ $$ohm.$$ It runs off a $$250$$ $$V$$ $$d.c.$$
View Question Two transformers of the same type, using the same grade of iron and conductor materials, are designed to work at the sam
View Question Two transformers of different $$kVA$$ ratings workings in parallel share the load in proportion to their ratings when th
View Question Which of the following equations represents the Gauss's law in a homogeneous isotropic medium?
View Question An electrostatic potential is given by $$\phi=2x\sqrt y$$ volt in the rectangular co-ordinate system. The magnitude of t
View Question In the circuit shown in fig, $$L$$ is large and the average value of $$'i'$$ is $$100A.$$ The thyristor is gated in the
View Question The inductance of a power transmission line increases with
View Question The selection of size of conductors for a distributor in a distribution system is governed by
View Question A Buchholz relay is used for
View Question In load flow studies of a power system, the quantities specified at a voltage-controlled bus are ____________and________
View Question The impulse response of a network is $$h\left( t \right) = 1$$ for $$0 \le t < 1$$ and zero otherwise. Sketch the im
View Question Match the following transfer functions and impulse responses
Transfer functions
$$\eqalign{
& \left( a \right)\,\,
View Question